A. Wonfor, K. T. Tan, C. Ribbat, D. Bimberg, K. Williams, D. Kang, M. Blamire, A. R. Kovsh, V. Ustinov, A. Zhukov, R. Penty, I. White
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High bandwidth modulation of multiple contact 1.3 micron quantum dot lasers
By forming twin contacts on a 1300 nm quantum dot laser, a small signal modulation bandwidth of 4.6 GHz is achieved. This bandwidth value is 2.3 times greater than that for the equivalent single contact device. The quantum dot lasers studied are 800 /spl mu/m long with 8 /spl mu/m wide ridge guides and 5 InAs quantum dot stacks in the active layer.
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